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IronRidge Resources said it had received 'excellent' metallurgical test-work results from the Ewoyaa lithium project in Ghana.
High-grade spodumene concentrate with low level contaminants was produced by simple crushing to 6.3mm and gravity dense media separation, the company said.
A bulk sample was generated at a 1.68% lithium oxide head grade, while a high-grade 6.29% concentrate was also produced.
'We are pleased to report that ongoing metallurgical test-work at bench scale continues to deliver high-grade spodumene concentrate with low level contaminants,' chief operating officer Len Kolff said.
'We have successfully demonstrated that we can produce a high-quality concentrate using simple crushing, screening and DMS cyclone beneficiation at bench-scale, without the need for additional flotation.'
At 2:30pm: (LON:IRR) Ironridge Resources Limited share price was +0.5p at 13.75p